Tag Archives for pilot
Hydraulic Pilot Operated Relief Valve
The direct acting and pilot operated relief valve have a different pressure vs. flow curve although both of them perform the same function. The pilot operated relief valve allows the operation over a wider pressure range. The figure above shows … Continue reading
Hydraulic pilot operated four-way directional control valve
Hydraulic pilot operated four-way valve is used to control the hydraulic fluid flow direction by using a pilot pressure. In the figure above, if the pilot pressure on either spool side is pressurized by a hydraulic fluid pressure then the … Continue reading
Pilot Operated Valve
On large hydraulic valve the force needed to operate the valve also increases. If the force is too large for solenoid or manual operation, then we can use pilot operated valve. The working principle of pilot operated valve is shown … Continue reading
Pilot Operated Check Valve
According to the schematic above the cylinder should remain in its position when the control valve is in its center position or off position. But in practice the leakage in control valve will allow the cylinder to creep. Check valve … Continue reading